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A rocket is launched into the air. A few moments after lifterf, therocket is 40 $\mathrm{m}$ above the ground. After another 5 $\mathrm{s}$ , the rocket is now aoo $\mathrm{m}$ off the ground. What is the average velocity of the rocket during the 5 s part of the flight?(A) 16 $\mathrm{m} / \mathrm{s}$(B) 32 $\mathrm{m} / \mathrm{s}$(C) 48 $\mathrm{m} / \mathrm{s}$(D) 64 $\mathrm{m} / \mathrm{s}$

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Chapter 4

Practice Test 4

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the original Lost in the rocket is given by rate of change of displacement, Celtics or delta T. So changing displacement we have here 200 minus minus 14 5 seconds. Five seconds. So are ever jewel lost. Four up. It is it that you do meet it per second for a second. So Option D's option bees, Right? End off the problem. Thank you for watching.

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